下列程式代碼範例示範 事件的處理程序實作DownloadProgressChanged。 方法會顯示 屬性的值TotalBytesToReceive。 C# privatestaticvoidUploadProgressCallback(objectsender, UploadProgressChangedEventArgs e){// Displays the operation identifier, and the transfer progress.Console.WriteLine("{0} uploaded {1} of...
The DownloadProgressChanged event can be used monitor the progress of a download request. The DownloadProgressChanged event occurs whenever the amount of total content downloaded increases by 0.05 or more (as a factor of 1.0, which indicates completion), or reaches 1.0. Either theCompletedorDownload...
WebClient client = new WebClient(); client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(DownloadProgressCallback); UI线程阻塞:如果下载操作在UI线程中进行,可能会导致UI线程阻塞,从而无法更新文本框。解决方法是将下载操作放在后台线程中执行,以避免阻塞UI线程。可以使用Task或BackgroundWorker来实...
The DownloadProgressChanged event can be used monitor the progress of a download request. The DownloadProgressChanged event occurs whenever the amount of total content downloaded increases by 0.05 or more (as a factor of 1.0, which indicates completion), or reaches 1.0. Either the Completed or ...
object.AddEventListener("DownloadProgressChanged", "eventhandlerFunction") This syntax also returns a token; however, the token is not an absolute requirement for removing the handler, in cases where the handler was added by using a quoted string. For details, see RemoveEventListener. This event ...
progressBar1.Value = downloadProgressChangedEventArgs.ProgressPercentage; })); } 开发者ID:SynoCam,项目名称:synocam,代码行数:7,代码来源:DownloadProgress.cs 示例2: DownloadProgressChanged ▲点赞 5▼ ///Updates the download visuals (progress bar, text %, etc.)privatevoidDownloadProgressChanged(object...
object.AddEventListener("DownloadProgressChanged", "eventhandlerFunction") This syntax also returns a token; however, the token is not an absolute requirement for removing the handler, in cases where the handler was added by using a quoted string. For details, seeRemoveEventListener. ...
包含事件数据的DownloadProgressChangedEventArgs对象。 示例 下面的代码示例演示此方法的实现,该方法可由派生自WebClient的类进行自定义。 C# protectedoverridevoidOnDownloadProgressChanged(DownloadProgressChangedEventArgs e){// Here you can perform any custom actions before the event is raised// and event handlers...
WebClientDownloadProgressChanged(); Console.ReadLine(); }staticvoidWebClientDownloadProgressChanged() {stringurl ="https://download.microsoft.com/download/d/1/c/d1c74788-0c6b-4d23-896e-67cf849d31ed/SSMS-Setup-ENU.exe";using(WebClient wc=newWebClient()) ...
在启动的时候可以设置是否是自动更新和是否是手动更新，自动更新的意思就是说不需要人工的干预实现从远程...